Saturday, February 10, 2007

The Invisible Enemy -- Wired

Interesting pop science article that highlighted the new problem Acinetobacter baumannii has become from the war in Iraq. http://www.wired.com/wired/archive/15.02/enemy.html The Invisible Enemy Issue 15.02 - February 2007 The Pentagon created the perfect machine for saving the lives of soldiers wounded in Iraq. But then GIs started getting sick. The culprit: a drug-resistant supergerm infecting the military's evacuation chain. By Steve Silberman A homemade bomb exploded under a Humvee in Anbar province, Iraq, on August 21, 2004. The blast flipped the vehicle into the air, killing two US marines and wounding another - a soft-spoken 20-year-old named Jonathan Gadsden who was near the end of his second tour of duty. In previous wars, he would have died within hours. His skull and ribs were fractured, his neck was broken, his back was badly burned, and his stomach had been perforated by shrapnel and debris.... But he still had mysterious symptoms that he couldn't shake, like headaches, rashes, and intermittent fevers. His doctors gave him CT scans, laxatives, methadone, beta-blockers, Xanax, more surgery, and more antibiotics. An accurate evaluation of his case was difficult, however, because portions of his medical records never arrived from Bethesda. If they had, they would have shown a positive test for a kind of bacteria called Acinetobacter baumannii. In the taxonomy of bad bugs, acinetobacter is classified as an opportunistic pathogen. Healthy people can carry the bacteria on their skin with no ill effects - a process known as colonization. But in newborns, the elderly, burn victims, patients with depressed immune systems, and those on ventilators, acinetobacter infections can kill. The removal of Gadsden's spleen and the traumatic nature of his wounds made him a prime target....